KR20220153575A - molding system - Google Patents

Abstract

The molding system is a molding system that performs molding by expanding and deforming a metal material, and includes a molding device that performs molding and at least one conveying device that conveys the metal material, wherein the conveying device is molded in a state in which the metal material is supported. In the case where there is a preprocessing device that transports the material to the device and performs preprocessing for forming, the conveying device transports the metal material to the preprocessing device while supporting the metal material, and the metal material is transported to one of the devices by the conveying device. At least one of the transporting device and any one of the devices continues to support the metal material during the period from the conveyance step to the processing step in any one of the devices.

Description

molding system

One aspect of the present invention relates to a molding system.

Conventionally, as a molding system, the one described in Patent Document 1 is known. This molding system has a heating unit for heating a metal material, a fluid supply unit for supplying a fluid to the heated metal material, and a molding mold for molding the heated metal material. The molding apparatus makes the metal material into a shape corresponding to the molding surface by bringing the heated metal material into contact with the molding surface of the molding die.

Patent Document 1: Japanese Unexamined Patent Publication No. 2009-220141

Here, the molding system described in Patent Document 1 described above performs molding by expanding and deforming a metal material. In this type of molding system, since it is necessary to expand the metal material during molding, it is not possible to form a reference hole for clarifying the reference position in the previous step of the molding process. Even under a situation where such a reference hole cannot be provided, it is desired to improve the precision of products using molded products.

One aspect of the present invention has been made to solve these problems, and an object of the present invention is to provide a molding system capable of improving precision using molded products.

A molding system according to one aspect of the present invention is a molding system that performs molding by expanding and deforming a metal material, and includes a molding device that performs molding and at least one conveying device that conveys the metal material, wherein the conveying device comprises: If there is a preprocessing device that transports the material to the molding device in a supported state and performs preprocessing for molding, the transporting device transports the metal material to the preprocessing device while supporting the metal material, and the transport device transfers the metal material to the preprocessing device. At least one of the conveying device and any one of the devices continues to support the metal material between the conveying step in which the metal material is conveyed to the device and the treatment step in any one of the device.

In the molding system, the conveying device transports the metal material to the molding device while supporting it, and if there is a preprocessing device that performs preprocessing for molding, the conveying device carries the metal material to the preprocessing device while supporting the metal material. send back On the other hand, at least one of the conveying device and any one of the devices between the conveying step in which the metal material is conveyed to one of the devices by the conveying device and the processing step in the one of the devices is reached. Continue to support the metal material. That is, at least one of the conveying device and the molding device continues to support the metal material during the period from the conveying step of conveying to the molding device by the conveying device to the molding processing step in the molding device. In addition, when a preprocessing device exists, at least one of the conveying device and the preprocessing device is used to process the metal material between the conveying step conveyed to the preprocessing device by the conveying device and reaching the preprocessing step in the preprocessing device. continue to support In this case, when the positioning of the metal material has been performed in the previous stage of the conveying step, the forming system can execute the processing step while maintaining the positioning of the metal material. That is, it becomes possible to carry out molding processing and preprocessing by continuously restraining the metal material in the forming device or the preprocessing device so as to suppress displacement or phase misalignment. From the above, the precision of products using molded articles can be improved.

The molding system further includes a positioning unit for positioning the metal material in a part of the preprocessing device, and the conveying device supports the metal material in a positioning state in the positioning unit, and the metal material is positioned. Between being supported by the conveying device in the unit and until molding is performed by the molding device, when the conveying device, the molding device, and the preprocessing device exist, they may be continuously supported by any one of the preprocessing devices. In this case, the molding system can perform the molding process in the molding device while maintaining the state in which the metal material is positioned in the positioning unit.

The molding system further includes a post-processing device for processing a molded article formed by the molding device, the molding device marks the molded product, and the post-processing device detects a mark formed by the marking. Although a reference hole or the like cannot be formed in the metal material at the previous stage of the forming process along with expansion deformation, in this case, the molding apparatus marks the molded article after expansion deformation. Marking plays a role of describing a precise relative position with respect to the shape of the product. Therefore, in the post-process of the molding process, the post-processing device can process with good precision using the information by marking. From the above, the precision of products using molded articles can be improved.

A molding system according to one aspect of the present invention is a molding system for performing molding by expanding and deforming a metal material, comprising a molding device for performing molding and a post-processing device for processing a molded article molded by the molding device, the molding device comprising: , Marking is performed on the molded product, and the post-processing device detects the mark formed by the marking.

In the molding system, a molding device marks a molded product, and a post-processing device detects a mark formed by the marking. Although a reference hole or the like cannot be formed in the metal material at the previous stage of the forming process along with expansion deformation, in this case, the molding apparatus marks the molded article after expansion deformation. Marking plays a role of describing a precise relative position with respect to the shape of the product. Therefore, in the post-process of the molding process, the post-processing device can process with good precision using the information by marking. From the above, the precision of products using molded articles can be improved.

The post-processing device may detect the mark, and based on the detection result, perform position correction for processing of the molded article, and may perform predetermined processing. In this way, the post-processing device can perform processing with good precision based on the detection result of the mark.

A molding system for performing molding by expanding and deforming a metal material, comprising a molding device for performing molding, at least one conveying device for conveying the metal material, and a post-processing device for processing a molded product molded by the molding device, the conveying device In the case where the metal material is conveyed to the molding device in a supported state, and there is a preprocessing device that performs preprocessing for molding, the conveying device conveys the metal material to the preprocessing device in a supported state, and the conveying device At least one of the conveying device and any one of the devices continues to support the metal material during the period from the conveying step in which the metal material is conveyed to one of the devices to the processing step in the one of the devices, The molding device marks the molded product, and the post-processing device detects the mark formed by the marking.

According to the molding system, in the molding system, the conveying device conveys the metal material to the molding device in a supported state, and furthermore, if there is a preprocessing device that performs preprocessing for molding, the conveying device supports the metal material. It is returned to the pre-processing unit in this state. On the other hand, at least one of the conveying device and any one of the devices between the conveying step in which the metal material is conveyed to one of the devices by the conveying device and the processing step in the one of the devices is reached. Continue to support the metal material. That is, at least one of the conveying device and the molding device continues to support the metal material during the period from the conveying step of conveying to the molding device by the conveying device to the molding processing step in the molding device. In addition, when a preprocessing device exists, at least one of the conveying device and the preprocessing device is used to process the metal material between the conveying step conveyed to the preprocessing device by the conveying device and reaching the preprocessing step in the preprocessing device. continue to support In this case, when the positioning of the metal material has been performed in the previous stage of the conveying step, the forming system can execute the processing step while maintaining the positioning of the metal material. That is, it becomes possible to carry out molding processing and preprocessing by continuously restraining the metal material in the forming device or the preprocessing device so as to suppress displacement or phase misalignment. From the above, the precision of products using molded articles can be improved. Further, in the molding system, a molding device marks a molded product, and a post-processing device detects a mark formed by the marking. Although a reference hole or the like cannot be formed in the metal material at the previous stage of the forming process along with expansion deformation, in this case, the molding apparatus marks the molded article after expansion deformation. Marking plays a role of describing a precise relative position with respect to the shape of the product. Therefore, in the post-process of the molding process, the post-processing device can process with good precision using the information by marking. From the above, the precision of products using molded articles can be improved.

According to one aspect of the present invention, it is possible to provide a molding system capable of improving the precision of a product using a molded article.

1 is a schematic diagram of a molding apparatus used in the molding system according to the present embodiment.
2 is an example of a conceptual diagram showing the configuration of a molding system according to the present embodiment.
Fig. 3 is a schematic view showing the supported state of the metal pipe material in each device.
Fig. 4 is a schematic diagram showing a processing step of a molded article after molding.
5 is a cross-sectional view showing a marking part of the molding apparatus.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described, referring drawings. However, the same reference numerals are assigned to the same parts or equivalent parts in each drawing, and overlapping descriptions are omitted.

Fig. 1 is a schematic diagram of a molding apparatus 1 used in a molding system 100 according to this embodiment. As shown in Fig. 1, the molding device 1 is a device for molding a heated metal material with a molding die. In this embodiment, as the forming device 1, a STAF forming device is employed that supplies a fluid to a heated metal pipe material and brings it into contact with the forming surface of a forming mold to perform forming and quenching. In this embodiment, the molding apparatus 1 is installed on a horizontal surface. The molding apparatus 1 includes a molding mold 2, a drive mechanism 3, a support part 4, a fluid supply part 6, a cooling part 7, and a control part 8. However, in this specification, the metal pipe material 40 (metal material) refers to a hollow article before molding in the molding apparatus 1 is completed. The metal pipe material 40 is a pipe material of a type of steel that can be quenched. Among the horizontal directions, the direction in which the metal pipe material 40 extends during molding is sometimes referred to as the "longitudinal direction", and the direction orthogonal to the longitudinal direction is sometimes referred to as the "width direction".

The molding mold 2 is a mold for molding a product from the metal pipe material 40, and includes a lower mold 11 and an upper mold 12 that face each other in the vertical direction. The lower mold 11 and the upper mold 12 are composed of steel blocks. In each of the lower mold 11 and the upper mold 12, a concave portion having a molding surface of the metal pipe material 40 is provided. The lower mold 11 and the upper mold 12 are in close contact with each other (mold closed state), and each concave portion forms a space of a target shape in which the metal pipe material is to be molded. Therefore, the surface of each concave portion becomes a molding surface of the molding die 2 . The lower mold 11 is fixed to the base 13 via a die holder or the like. The upper mold 12 is fixed to the slide of the drive mechanism 3 via a die holder or the like.

The drive mechanism 3 is a mechanism that moves at least one of the lower mold 11 and the upper mold 12 . In FIG. 1 , the drive mechanism 3 has a configuration in which only the upper mold 12 is moved. The driving mechanism 3 includes a slide 21 that moves the upper mold 12 so that the lower mold 11 and the upper mold 12 are in contact with each other, and a force that pulls the slide 21 upward. A pull back cylinder 22 as an actuator that generates, a main cylinder 23 as a drive source for pressing down the slide 21, and a drive source 24 for imparting a driving force to the main cylinder 23, have.

The support part 4 is a mechanism for supporting the metal pipe material 40 disposed between the lower mold 11 and the upper mold 12 . The support portion 4 includes a support member 26 and a support member 27 for supporting the metal pipe material 40 on one end side in the longitudinal direction of the molding die 2, and both sides in the longitudinal direction. The supporting member 26 and the supporting member 27 support the metal pipe material 40 by pinching the vicinity of the end portion of the metal pipe material 40 in the vertical direction. However, grooves having a shape corresponding to the outer circumferential surface of the metal pipe material 40 are formed on the upper surface of the support member 26 and the lower surface of the support member 27 . The support member 26 and the support member 27 are provided with a driving mechanism (not shown), and can move in the vertical direction independently of each other.

The fluid supply unit 6 is a mechanism for supplying high-pressure fluid into the metal pipe material 40 supported between the lower mold 11 and the upper mold 12. The fluid supply unit 6 supplies high-pressure fluid to the metal pipe material 40 that has been heated and becomes a high temperature state, thereby expanding the metal pipe material 40 . Fluid supply units 6 are provided at both ends of the mold 2 in the longitudinal direction. The fluid supply unit 6 includes a nozzle 31 for supplying fluid to the inside of the metal pipe material 40 from the opening of the end of the metal pipe material 40, and the nozzle 31 to the metal pipe material 40. A drive mechanism 32 for moving back and forth with respect to the opening, and a supply source 33 for supplying high-pressure fluid into the metal pipe material 40 through the nozzle 31 are provided. The drive mechanism 32 brings the nozzle 31 into close contact with the end of the metal pipe material 40 in a state in which sealing properties are secured during fluid supply and exhaust, and the nozzle 31 is attached to the metal pipe material in other cases. It is separated from the end of (40). However, the fluid supply unit 6 may supply gas such as high-pressure air or inert gas as a fluid. In addition, the fluid supply unit 6 may be the same device together with the support unit 4 having a mechanism for moving the metal pipe material 40 in the vertical direction. In this case, the base member 38 supporting the fluid supply section 6 and the support section 4 may be connected by a connecting member 39.

The cooling unit 7 is a mechanism for cooling the molding die 2 . The cooling unit 7 can rapidly cool the metal pipe material 40 when the expanded metal pipe material 40 contacts the molding surface of the molding mold 2 by cooling the molding mold 2. . The cooling unit 7 includes a flow path 36 formed inside the lower mold 11 and the upper mold 12, and a water circulation mechanism 37 for supplying and circulating cooling water to the flow path 36. .

The controller 8 is a device that controls the entire molding apparatus 1. The control unit 8 controls the drive mechanism 3, the support unit 4, the fluid supply unit 6, and the cooling unit 7. The controller 8 repeatedly performs the operation of molding the metal pipe material 40 with the molding die 2 .

Specifically, the control unit 8 controls the transfer timing from a transfer device such as, for example, a robot arm, so that the metal pipe material ( 40) is placed. Further, the controller 8 supports the metal pipe material 40 with the support members 26 on both sides in the longitudinal direction, and then lowers the support member 27 to sandwich the metal pipe material 40 therebetween. So, the actuator of the support part 4 is controlled.

The control unit 8 controls the drive mechanism 3 to lower the upper mold 12 and bring it closer to the lower mold 11 to close the molding mold 2 . On the other hand, the control unit 8 controls the fluid supply unit 6 to supply fluid to the nozzle 31 while sealing the openings at both ends of the metal pipe material 40 . As a result, the metal pipe material 40 softened by heating expands and contacts the molding surface of the molding mold 2 . Then, the metal pipe material 40 is molded so as to conform to the shape of the molding surface of the molding mold 2 . However, in the case of forming a flanged metal pipe, after a part of the metal pipe material 40 enters the gap between the lower mold 11 and the upper mold 12, the mold is further closed. , Press and crush the entry portion to form a flange portion. When the metal pipe material 40 contacts the molding surface, the metal pipe material 40 is quenched by being quenched by the cooling part 7 in the cooling mold 2 .

As described above, the molding apparatus 1 performs molding by expanding and deforming the metal pipe material 40 . For this reason, it is not possible to make a structure in which a fluid leaks by piercing a hole in the metal pipe material 40 before the expansion of the metal pipe material 40 in the forming apparatus 1. Therefore, it is not possible to form a positioning hole in the metal pipe material 40 in the previous stage of molding. Therefore, the forming system 100 according to the present embodiment has a structure for forming the metal pipe material 40 in the forming apparatus 1 in a positioning state.

2 is an example of a conceptual diagram showing the configuration of the molding system 100 according to the present embodiment. As shown in Fig. 2, the forming system 100 includes a metal pipe material preparation zone (area) E1, a heating zone E2, a forming zone E3, an accumulation zone E4, a processing zone E5, and a processing zone E6. do. In addition, the forming system 100 includes a positioning unit 50 in the metal pipe material preparation zone E1, a heating device 60 in the heating zone E2, a forming device 1 in the forming zone E3, and an accumulation zone E4. The accumulator 70, the inspection device 81, the scale removal device 82, and the accumulator 83 in the processing zone E5, the post-processing device 90 in the processing zone E6, and the conveying devices disposed in each zone (110A to 110D) are provided. The transport devices 110A to 110D are constituted by transport devices such as robots.

In the metal pipe material preparation zone E1, the metal pipe material 40 is prepared. Further, in the metal pipe material preparation area E1, positioning of the metal pipe material 40 is performed by the positioning unit 50 as shown in Fig. 3(a). The positioning part 50 positions the metal pipe material 40 by three-point support, for example, as shown in FIG.3(a). That is, the positioning unit 50 includes support units 51A and 51B for supporting both ends of the metal pipe material 40 and a support unit 51C for supporting the central position of the metal pipe material 40 in the longitudinal direction. do. For example, the positioning unit 50 can determine the phase of the metal pipe material 40 by means of the support units 51A, 51B and 51C. Moreover, in the positioning part 50, by pressing one end part of the metal pipe material 40 against the wall part 52, it becomes positioning in the longitudinal direction.

Returning to FIG. 2, the metal pipe material 40 positioned by the positioning part 50 is conveyed to the heating device 60 of the heating zone E2 by the conveying device 110A. In the heating zone E2, the heating device 60 heats the metal pipe material. The heating device 60 is equipped with two sets of electrodes 61 and 62, as shown in FIG.3(c). One electrode 61, 62 pinches and holds one end of the metal pipe material 40. The other electrodes 61 and 62 hold the other end of the metal pipe material 40 by inserting it therein. The heating device 60 is a mechanism that heats the metal pipe material 40 by passing current through the electrodes 61 and 62 to the metal pipe material 40 . The heating device 60 sends a high current between the electrodes 61 and 62 on one side and the electrodes 61 and 62 on the other side. As a result, an axial current flows through the metal pipe material 40, and the metal pipe material 40 itself generates heat by Joule heat due to the electrical resistance of the metal pipe material 40 itself.

Returning to Fig. 2, the metal pipe material 40 heated by the heating device 60 is conveyed to the forming device 1 in the forming zone E3 by the conveying device 110B. In the forming zone E3, forming of the metal pipe material 40 is performed by the forming apparatus 1. In this way, the molded article 41 is formed (see Fig. 4).

The molded article 41 molded by the molding apparatus 1 is accumulated in the accumulating unit 70 of the accumulating zone E4 by the conveying apparatus 110C. The accumulator 70 is a device that integrates a plurality of molded products 41 . As shown in (a) of FIG. 4 , in the accumulator 70 , the transfer device 110C holds the molded article 41 molded by the molding device 1 and places it on the accumulator cart 71 . The transfer device 110C stacks the molded products 41 on the stacking cart 71 by repeating the operation.

Returning to FIG. 2 , the operator conveys the collecting cart 71 on which the molded articles 41 are accumulated in the collecting unit 70 to the inspection device 81 in the processing zone E5. The inspection device 81 inspects the molded product 41 . The inspection device 81 inspects the shape and the like of the molded product 41, and displays an error for those that do not satisfy a predetermined criterion. Next, the operator conveys the passed molded product 41 to the scale removal device 82. The scale removal device 82 removes oxide scale generated in the molded product 41 during molding. The scale removal device 82 removes scale by, for example, shot blasting or wet blasting. The operator puts the molded article 41 from which the scale has been removed on the stacking cart of the stacking unit 83.

The molded article 41 of the accumulator 83 is conveyed to the post-processing device 90 in the processing zone E6 by the conveying device 110D. As shown in FIG. 2 , the post-processing device 90 in the processing zone E6 irradiates the molded product 41 with laser to perform processing such as punching, notching, and cutting. As shown in (b) and (c) of FIG. 4 , the post-processing device 90 includes a laser head 91 (processing part). The post-processing device 90 moves the laser head 91 according to the processing content while irradiating the molded article 41 from the laser head 91.

The molding system 100 according to the present embodiment has a function of restraining the positioning metal pipe material 40 so that the relative position and relative phase do not change until molding is performed by the molding apparatus 1. have

Specifically, in the forming system 100, the metal pipe material 40 is transported from a conveying step in which the metal pipe material 40 is conveyed to either of the devices 1 or 60 by the conveying devices 110A or 110B. , until reaching the processing step in any one of the devices 1 and 60, it is continuously held by at least one of the conveying devices 110A and 110B and any one of the devices 1 and 60. The metal pipe material 40 is held by the conveying device 110A in the positioning unit 50, until the molding is performed by the molding device 1, the conveying device 110A, 110B, the molding device 1), and the heating device 60 is continuously gripped.

More specifically, as shown in Fig. 3(b), the conveying device 110A clamps the metal pipe material 40 positioned by the positioning unit 50 between the holding members 101 and 102. By inserting, the metal pipe material 40 is gripped. At this time, when the conveying device 110A grips the metal pipe material 40 on the positioning unit 50, the position or angle of the metal pipe material 40 with respect to the holding members 101 and 102 before and after gripping is Make it a non-disruptive structure. The conveying device 110A conveys the metal pipe material 40 to the heating device 60 in a state of being held by the holding members 101 and 102 . However, the conveying device 110A does not cancel the holding of the metal pipe material 40 or change the holding state (for example, changing the holding position or angle) during conveyance.

As shown in Fig. 3(c), the conveying device 110A performs positioning with respect to the heating device 60 in a state where the metal pipe material 40 is held. At this time, the conveying device 110A performs positioning based on information such as the position and angle holding the metal pipe material 40 . When the positioning of the conveying device 110A is completed, the heating device 60 grips both ends of the metal pipe material 40 with the electrodes 61 and 62 . As shown in (d) of FIG. 3 , when the gripping with the electrodes 61 and 62 is completed, the gripping part 100A releases the gripping of the metal pipe material 40, and the gripping members 101 and 102 is returned to the positioning unit 50 again.

Next, the conveying device 110B grips the metal pipe material 40 after heating by sandwiching the metal pipe material 40 between the gripping members 101 and 102 . At this time, the conveying device 110B has a structure in which the position or angle with respect to the holding members 101 and 102 does not shift before and after holding the metal pipe material 40 on the heating device 60. The heating device 60 cancels the gripping by the electrodes 61 and 62 when the gripping by the transfer device 110B is completed. The conveying device 110B conveys the metal pipe material 40 to the molding device 1 in a state of being held by the holding members 101 and 102 . However, the conveying device 110B does not cancel the holding of the metal pipe material 40 or change the holding state (for example, changing the holding position or angle) during conveyance.

As shown in (e) of FIG. 3, the conveying device 110B performs positioning with respect to the molding device 1 in a state where the metal pipe material 40 is held. At this time, the conveying device 110B has a structure in which the position or angle with respect to the gripping members 101 and 102 does not shift before and after gripping the metal pipe material 40. When the positioning of the conveying device 110B is completed, the forming device 1 grips both ends of the metal pipe material 40 with the supporting members 26 and 27 . As shown in FIG. 3(f), when the gripping is completed, the gripping part 100B cancels the gripping of the metal pipe material 40, and the gripping members 101, 102 are returned to the heating device 60. return to the side The metal pipe material 40 disposed in the molding apparatus 1 becomes a molded article 41 after molding.

In addition, the molding apparatus 1 marks the molded product 41 . As shown in FIG. 5 , the molding apparatus 1 has a marking portion 120 . The marking unit 120 marks the outer circumferential surface of the molded product 41 . The marking unit 120 includes, for example, a pin 121, a pin support mechanism 122, an oil pressure chamber 123, and a hydraulic oil supply unit 124 in the case of marking with a pin. The pin 121 is disposed in the lower mold 11 and can reciprocate in the vertical direction. The pin 121 is accommodated in the lower mold 11 so as not to protrude from the molding surface 11a when marking is not performed. The pin 121 protrudes from the molding surface 11a when marking is performed. The pin support mechanism 122 is a mechanism for supporting the pin 121 within the lower mold 11 . The pin support mechanism 122 supports the pin 121 so as to be reciprocally movable in the vertical direction. Further, the pin support mechanism 122 includes a spring member 122a. When the pin 121 protrudes from the molding surface 11a, the spring member 122a provides an elastic force in the direction of returning the pin 121 to its original position. The oil pressure chamber 123 is an internal space formed in the lower mold 11 . In the oil pressure chamber 123, the proximal end of the pin 121 is exposed. The hydraulic oil supply unit 124 supplies hydraulic oil to the hydraulic chamber 123 .

Thus, when the hydraulic oil supply unit 124 supplies hydraulic oil to the oil pressure chamber 123, the proximal end of the pin 121 receives pressure, and the pin 121 protrudes from the molding surface 11a. As a result, a mark is formed on the outer circumferential surface of the molded article 41 by a dent or a through hole. When hydraulic oil is discharged from the oil pressure chamber 123, the pressure on the proximal end of the pin 121 is released, and the pin 121 returns to its original position. However, the hydraulic mechanism as described above does not need to be incorporated in the lower mold 11, and may be incorporated in the die holder or press device. However, the timing at which the pin 121 protrudes from the molding surface to perform marking is not particularly limited. However, the marking of the pin 121 may be performed at a timing when molding is completed and the temperature of the molded product 41 is lowered to some extent. In this case, a mark can be applied after the molded article 41, which has been expanded by heating, contracts by cooling.

The above-described marking portion 120 accommodates the pin 121 in the lower mold 11 during molding of the molding apparatus 1 . After the molding is completed, the marking portion 120 causes the pin 121 to protrude from the molding surface 11a and presses the pin 121 to the molded product 41 . As a result, a mark is given to the molded product 41 . The marking portion 120 may be provided at a location corresponding to both ends of the molded product 41 or a central position of the molded product 41 in the lower mold 11, for example. Further, the marking portion 120 may be provided at a location corresponding to both ends of the molded product 41 or a location corresponding to the central position of the molded product 41 in the upper mold 12 . However, the number and location of the marking unit 120 are not particularly limited. For example, it is preferable that the marking part 120 is at least two locations including positions as far apart as possible. In addition, the mark may be any means as long as it can specify coordinates, and may be, for example, a marking with a pin, an intersection line by drawing a line, or punching.

As shown in (b) and (c) of FIG. 4, the post-processing apparatus 90 detects the mark MK formed by marking. Further, the post-processing device 90 detects the mark MK, and performs position correction between the laser head 91 and the molded article 41 based on the detection result. As shown in (b) of FIG. 4, the post-processing apparatus 90 is provided with the detection part 92 which detects the mark MK. The detection part 92 is comprised by the camera, for example. The detection unit 92 detects the position of the mark MK based on the captured image. Then, the post-processing device 90 calculates the relative displacement between the preset machining operation trajectory and the molded product 41 held in the post-processing device 90 based on the detected position of the mark MK, and then performs the processing operation. Calculate the correction amount of the trajectory. And, as shown in (c) of FIG. 4, when a shift occurs between the laser head 91 and the cutting line CL, the post-processing device 90 sets the laser head 91 to the cutting line ( CL), the shift is corrected.

Next, actions and effects of the molding system 100 according to the present embodiment will be described.

The molding system 100 performs expansion and deformation of the metal pipe material 40 to perform high-pressure gas expansion molding. In this type of molding system 100, since it is necessary to expand the metal material during molding, it is not possible to form a reference hole for clarifying the reference position in the previous stage of the molding process. If a reference hole can be provided, the positioning of the metal pipe material 40 can be easily performed by inserting a positioning pin or the like into the reference hole, and also in processing with the post-processing device 90, the reference The positioning of the molded article 41 can be performed using the hole. However, in high-pressure gas expansion molding, if such a standard hole is formed in the metal pipe material 40, the high-pressure gas leaks from the standard hole, and molding cannot be performed.

In contrast, the molding system 100 according to the present embodiment is a molding system 100 that performs molding by expanding and deforming the metal pipe material 40, and includes a molding device 1 that performs molding, and the metal pipe material 40 ) is provided, and the conveying device conveys the metal pipe material 40 to the molding device 1 in a holding state, and also has a heating device (pre-processing device) for pre-processing of molding. In this case, the metal pipe material 40 is conveyed to the heating device 60 while being held, and the metal pipe material 40 is conveyed to either device 1 or 60 by the conveying device. From the conveying step, Until reaching the processing step in any one of the devices 1 and 60, at least one of the conveying device and any one of the devices 1 and 60 continues to hold the metal pipe material 40.

In the forming system 100, from the conveying step in which the metal pipe material 40 is conveyed to any one of the devices 1 and 60 by the conveying device to the processing step in any one of the devices 1 and 60 During the time until, at least one of the conveying device and any one of the devices 1 and 60 continues to hold the metal pipe material 40. That is, between the conveying step conveyed to the molding device 1 by the conveying device 110B and the molding processing step in the molding device 1, the conveying device 110B and the molding device ( At least one of 1) continues to hold the metal pipe material 40. In addition, when the heating device 60 exists, it is transported between the conveyance step conveyed to the heating device 60 by the conveying device 110A to the heating step in the heating device 60. At least one of the device 110A and the heating device 60 continues to hold the metal pipe material 40 . In this case, when the positioning of the metal pipe material 40 has been performed in the previous stage of the conveying step, the forming system 100 can execute the processing step while maintaining the aligned state of the metal pipe material 40. have. In other words, it is possible to continuously restrain the metal pipe material 40 in the forming device 1 or the heating device 60 so that there is no position shift or phase shift, and the forming process or the heating process can be performed. From the above, the precision of the product using the molded article 41 can be improved.

The molding system 100 further includes a positioning unit 50 for positioning the metal pipe material 40 in a part of the preprocessing unit, and the conveying devices 110A and 110B are attached to the positioning unit 50. The metal pipe material 40 in a positioning state is held, and the metal pipe material 40 is held by the conveying devices 110A and 110B in the positioning unit 50, and then transferred to the molding device 1. During the time until molding is performed, when conveying apparatuses 110A and 110B, molding apparatus 1, and heating apparatus 60 exist, they are continuously held by one of these heating apparatuses 60. In this case, in the conveying step in the conveying device 110A, the heating step in the heating device 60, the conveying step in the conveying device 110B, and the forming step in the forming device 1, the metal pipe material ( 40) is continuously constrained so that there is no displacement and phase displacement, so that repeatability can be guaranteed. Therefore, the forming system 100 can perform the forming process in the forming device 1 while maintaining the state in which the metal pipe material 40 is aligned with the positioning unit 50.

The molding system 100 according to the embodiment is a molding system 100 that expands and deforms a metal pipe material 40 to perform molding, and includes a molding device 1 that performs molding and a molded product formed by the molding device 1. Equipped with a post-processing device 90 that performs the processing of (41), the molding device 1 marks the molded product 41, and the post-processing device 90 detects the mark formed by the marking and marks it. A correction operation of the machining position is performed based on the position, and predetermined machining is performed.

In the molding system 100, the molding device 1 marks the molded article 41, and the post-processing device 90 detects the mark formed by the marking. Although a reference hole or the like cannot be formed in the metal pipe material 40 at the previous stage of the forming process along with the expansion deformation, in this case, the molding apparatus 1 marks the molded product 41 after expansion deformation. Marking plays a role of describing a precise relative position with respect to the shape of the product. Therefore, in the post process of the molding process, the post-processing device 90 can process with good precision using the information by marking. In addition, the same assembly process as the conventional car body assembly process can be used by using the detection result of the post-processing device 90 to perform reference hole or cutout processing. In particular, in this embodiment, as described above, the molding apparatus 1 can perform molding while maintaining the positioning state in the positioning section 50 . Therefore, the molding apparatus 1 can mark the molded product 41 in a state in which displacement and phase displacement are suppressed. Therefore, the post-processing device 90 can perform processing using the positional information of the marking described at an accurate relative position with respect to the mold forming surface. From the above, the precision of the product using the molded article 41 can be improved.

The post-processing device 90 detects the mark, and based on the detection result, corrects the relative position of the processing based on the mark position described in the accurate relative position of the processing position with respect to the molded product 41, and performs predetermined processing. do In this way, the post-processing device 90 can perform processing with good accuracy based on the detection result of the mark.

The molding system is a molding system that performs molding by expanding and deforming a metal material, and includes a molding device for performing molding, a conveying device for conveying the metal material, and a post-processing device for processing a molded article formed by the molding device, and conveying The device conveys the metal material to the molding device in a supported state, and if there is a preprocessing device that performs a preprocessing for molding, the metal material is conveyed to the preprocessing device in a supported state, and the metal material is conveyed to the conveying device. It is continuously supported by at least one of the conveying device and any one of the devices during the period from the conveying step in which the metal material is conveyed to one of the devices to the processing step in the one of the devices, and molding The device marks the molded product, and the post-processing device detects the mark formed by the marking.

According to this molding system, it is possible to obtain the same effects and effects as those of the molding system described above.

This invention is not limited to the above-mentioned embodiment.

For example, it is not necessary to have a pretreatment device on the upstream side of the molding device. That is, the heating device does not have to exist. In this case, the molding apparatus has electrodes for energizing heating. Moreover, apparatuses other than a heating apparatus may exist as a preprocessing apparatus.

The transport device is not limited to a robot or the like. That is, the conveying device may be any capable of conveying the metal pipe material while supporting it in a state where at least the position and phase are supported.

The mechanism for marking is not limited to the above-described embodiment. For example, in the embodiment described above, marking is not performed during molding, and after molding is completed, the driving mechanism drives the pin to perform marking. However, such a drive mechanism may be omitted, and a configuration in which a pin always protrudes from the molding surface may be employed. In this case, marking is performed while the metal pipe material comes into contact with the molding surface. However, if a driving mechanism is provided, it becomes possible to perform marking after freezing the product shape with little influence of cooling shrinkage or the like.

The post-processing device may detect the mark by a method other than photographing with a camera. For example, the post-processing device may detect the mark by a contact sensor or the like.

For example, although high pressure gas expansion molding is exemplified as a molding apparatus, any molding method in which molding is performed by expansion deformation is not particularly limited. For example, a molding method such as hydroforming may be employed.

The processing unit is not limited to the post-processing device, and a device using other processing methods may be employed.

1 Molding device
60 heating device (pretreatment device)
90 post-processing device
91 Laser head (processing part)
100 molding system
110A, 110B, 110C, 110D conveying equipment

Claims (6)

As a molding system for performing molding by expanding and deforming a metal material,
A molding device for performing the molding;
Equipped with at least one conveying device for conveying the metal material;
The conveying device,
Conveying the metal material to the molding device in a supported state;
In addition, if there is a preprocessing device that performs preprocessing for molding, the conveying device conveys the metal material to the preprocessing device in a supported state,
Between the conveying step in which the metal material is conveyed to any one device by the conveying device and the processing step in the either device, at least one of the conveying device and any one of the devices A molding system in which one side continues to support the metal material. According to claim 1,
A part of the preprocessing device further includes a positioning unit for positioning the metal material;
The conveying device supports the metal material in a positioning state in the positioning unit,
The metal material is preprocessed in the case where the conveying device, the molding device, and the preprocessing device exist between the time from being supported by the conveying device in the positioning unit to the time when the molding is performed by the molding device. A molding system, continuously supported on one of the devices. According to claim 1 or 2,
Further comprising a post-processing device for processing the molded product formed by the molding device,
The molding device performs marking on the molded product,
The post-processing device detects the mark formed by the marking, the molding system. As a molding system for performing molding by expanding and deforming a metal material,
A molding device for performing the molding;
A post-processing device for processing a molded article molded by the molding device,
The molding device performs marking on the molded product,
The post-processing device detects the mark formed by the marking, the molding system. According to claim 4,
The molding system according to claim 1 , wherein the post-processing device detects the mark, corrects the processing position of the molded article based on the detection result, and performs predetermined processing. As a molding system for performing molding by expanding and deforming a metal material,
A molding device for performing the molding;
at least one conveying device for conveying the metal material;
A post-processing device for processing a molded article molded by the molding device,
The conveying device,
Conveying the metal material to the molding device in a supported state;
In addition, if there is a preprocessing device that performs preprocessing for molding, the conveying device conveys the metal material to the preprocessing device in a supported state,
Between the conveying step in which the metal material is conveyed to any one device by the conveying device and the processing step in the either device, at least one of the conveying device and any one of the devices One side continues to support the metal material,
The molding device performs marking on the molded product,
The post-processing device detects the mark formed by the marking, the molding system.

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